Multi-machine-head refrigerating system applied to seafood pool and aquatic product market building using multi-machine-head refrigerating system

Abstract

The multi-machine-head refrigerating system comprises a controller, a refrigerating main machine and a cooling tower, the refrigerating main machine is provided with a plurality of first compressors arranged in parallel, a condenser and a plurality of refrigerant pipeline outlets for outputting refrigerants at different temperatures, and the multi-machine-head refrigerating system comprises a plurality of refrigerant evaporation output pipelines, a plurality of second compressors and a plurality of second compressors, the head ends of the cooling pipes are communicated with outlets of the refrigerant pipelines in a one-to-one correspondence manner, and the tail ends of the cooling pipes are connected with titanium cannon devices for refrigeration; the plurality of refrigerant evaporation output pipelines are used for outputting refrigerants for refrigeration at different temperatures; one titanium cannon device and at least one pool pump supply water for cooling, so that cold water flows to the seafood pools in one-to-one correspondence with the titanium cannon devices; and refrigerants condensed by all the titanium cannon devices are collected through the refrigerant condensation and recovery pipeline and then are conveyed into the refrigeration main machine. The utility model provides an aquatic product market building applying the system. The aquatic product market building comprises a building frame provided with a plurality of seafood pools. The refrigeration energy efficiency is improved, and the operation cost of refrigeration equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seafood pond refrigeration and building heating and ventilation, and particularly relates to a multi-head refrigeration system applied to a seafood pond and an aquatic product market building using the same. BACKGROUND

[0002] In the prior art, water temperature is an important influencing factor for the breeding of a seafood pond, and different water temperatures correspond to different adaptation conditions of fish to temperature, for example, the fish such as Scats, Acanthophthalmus and some coral fish are suitable for higher water temperature (25-30 DEG C), and will die below 15-30 DEG C; the fish such as Mugil, Pomadasys and some salmonids are suitable for water temperature of 10-18 DEG C, and the technical personnel in the field have made a lot of researches on the environmental requirements of different seafood varieties of seafood ponds and the corresponding water temperature requirements of seafood ponds, and the paper "Temperature and Salinity Control Research on Mixing of Low-temperature Sea Water and Groundwater in Industrialized Aquaculture" can be referred to.

[0003] However, for the seafood pond of an aquatic product market, since the sales time of seafood in the aquatic product market is far lower than the breeding time in a factory, and there is a waste of cold water in the transportation process of seafood, the cold water supply requirement of the seafood pond not only needs to meet the water temperature requirement of the seafood pond of different seafood varieties, but also needs to consider the energy saving of the aquatic product market and the problems of equipment and construction cost. In the aquatic product market, many precious seafoods need to exist in low-temperature seawater ponds (10 DEG C-26 DEG C) all the year round. In the hot summer, the seafood pond needs to use a refrigeration system for cooling. Due to the need of operation, the seafood pond of the aquatic product market is generally directly exposed to the outdoor air environment, and the heat loss is large, and the refrigeration energy consumption is high. Therefore, improving the energy utilization efficiency of the seafood pond refrigeration system not only can save considerable refrigeration energy cost, but also is one of the important technical paths for energy saving and emission reduction of the aquatic product market, and is the key to realizing the double-carbon target of the aquatic product market.

[0004] At the beginning, the aquatic market often uses air-cooled split refrigeration host and plate exchange to cool the seafood pool. Later, in order to facilitate centralized management and improve the refrigeration energy efficiency, the centralized air-cooled variable refrigerant multi-contact system and titanium gun (i.e. heat exchanger) are gradually used. In order to further improve the energy efficiency of the refrigeration system, a centralized water-cooled variable refrigerant multi-contact system and titanium gun appears. The water-cooled system uses a cooling tower for heat dissipation, and improves the energy efficiency by reducing the condensing temperature of the refrigeration system. At present, the refrigeration system used for the aquatic market breeding pool usually uses a variable refrigerant volume (VRV) air-cooled or water-cooled system to meet the different water temperature requirements of different aquatic pools by controlling the opening degree of the electronic expansion valve at the end to adjust the refrigeration capacity of the titanium gun. However, the conventional system can only supply refrigerant in a single state. In order to meet the low-temperature pool demand (10℃-18℃), the titanium gun evaporation temperature needs to be controlled below 10℃. At this time, for the medium-high temperature pool demand (≥20℃), using high-grade refrigerant in this state for cooling will cause energy waste, which is not conducive to improving the energy utilization efficiency of the refrigeration system and leads to high operating costs of the aquatic market. For example, due to the low-temperature seafood pool demand (≤10℃), the refrigerant evaporation temperature of the existing refrigeration system is usually around -5℃. At this time, for the medium-high temperature seafood pool (≥20℃), low-temperature refrigerant (≤10℃) is still used for cooling, which causes the low-temperature refrigerant to be wasted. Practical new type content

[0005] Therefore, it is necessary to propose a multi-head refrigeration system applied to a seafood pool and an aquatic market building using the same to overcome the shortcomings in the prior art and solve the following technical problems:

[0006] How to improve the refrigeration energy efficiency and reduce the operating cost of the refrigeration equipment under the condition of meeting the refrigeration demand of multiple temperature adjustment ranges of multiple seafood pools.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The utility model discloses a multi-head refrigeration system applied to a seafood pool, which comprises a controller, a refrigeration host and a cooling tower, the refrigeration host is provided with a plurality of first compressors and condensers arranged in parallel, and the cooling tower is used for cooling the condenser.

[0009] A plurality of refrigerant evaporation output pipelines, the first end of each refrigerant evaporation output pipeline is in one-to-one correspondence with each refrigerant pipeline outlet respectively; the tail end of each refrigerant evaporation output pipeline is connected with a titanium gun device for refrigeration; and the plurality of refrigerant evaporation output pipelines are used for outputting refrigerant for refrigeration at different temperatures.

[0010] A plurality of pool pumps, a titanium cannon device is supplied with water by at least one pool pump to reduce the temperature, so that the cold water flows to the corresponding seafood pool of the titanium cannon device.

[0011] A refrigerant condensing recovery pipeline, the condensed refrigerant of each titanium cannon device is collected through the refrigerant condensing recovery pipeline and then transmitted to the refrigeration host.

[0012] Further, the first compressor is connected with the refrigerant evaporation output pipeline one by one.

[0013] Further, the refrigeration host is also provided with a plurality of second compressors; the second compressor is connected with the corresponding first compressor in pipeline series, for reducing the refrigerant temperature of the outlet of the refrigerant pipeline of the first compressor.

[0014] Further, the number of the refrigerant evaporation output pipelines is three.

[0015] Further, the number of the first compressors is three.

[0016] The utility model also proposes a kind of application as above any one is applied to the water product market building of multi-head refrigeration system of seafood pool, and the water product market building includes building framework;Building framework is equipped with multiple seafood pools;The titanium cannon device is one by one with seafood pool.

[0017] Further, the water product market building is equipped with multiple seawater supply pipes;Seafood pool obtains seawater by corresponding seawater supply pipe.

[0018] Further, building framework is also equipped with several seawater pumps;Each seawater supply pipe is interconnected, and each seawater supply pipe is supplied with seawater by corresponding seawater pump.

[0019] Further, the controller is electrically connected with each seawater pump respectively.

[0020] Further, building framework is equipped with multiple shops with seafood pool;Water temperature of one of seafood pool is ≤10 DEG C, and water temperature of another seafood pool is ≥20 DEG C.

[0021] The utility model has the advantages that:

[0022] The utility model satisfies the refrigeration demand of multiple seafood pools corresponding to multiple temperature adjustment ranges, improves refrigeration energy efficiency and reduces refrigeration equipment operation cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structural principle diagram of the multi-head refrigeration system of seafood pool of the utility model for application;

[0024] Mark explanation:

[0025] Refrigeration host 1; Cooling tower 2; Refrigerant evaporation output pipeline 3; Refrigerant condensation recovery pipeline 4; Pool pump 5; Titanium cannon device 6; Seafood pool 7; Refrigerant pipeline outlet 11; Shop building 12; Seawater supply pipe 13. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be further clearly and completely described below in combination with the embodiments of the utility model. It should be noted that the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] It should be understood that the terms "upper", "lower", "front", "rear", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] The terms "first", "second", "third", "fourth" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the "first", "second", "third", "fourth" features can explicitly or implicitly include one or more features.

[0029] Embodiment 1

[0030] As shown in Figure 1

[0031] The embodiment proposes a multi-head refrigeration system applied to a seafood pool, comprising a controller, a refrigeration host 1 and a cooling tower 2, the refrigeration host 1 is provided with a plurality of first compressors and condensers arranged in parallel, the cooling tower 2 is used for cooling the condensers, the refrigeration host 1 is further provided with a plurality of refrigerant pipeline outlets 11 outputting different temperatures, and the multi-head refrigeration system further comprises:

[0032] A plurality of refrigerant evaporation output pipelines 3, the first end of each refrigerant evaporation output pipeline 3 is in one-to-one correspondence with each refrigerant pipeline outlet 11 respectively; the tail end of each refrigerant evaporation output pipeline 3 is connected with a titanium cannon device 6 for refrigeration; and the plurality of refrigerant evaporation output pipelines 3 are used for outputting refrigerants for refrigeration at different temperatures;

[0033] ​A plurality of pool pumps 5, a titanium cannon device 6 (i.e. a heat exchanger) is provided with at least one pool pump 5 for water cooling, so that the cold water flows to the seafood pool 7 corresponding to the titanium cannon device 6;

[0034] A refrigerant condensing recovery pipeline 4, the condensed refrigerant of each titanium cannon device 6 is collected through the refrigerant condensing recovery pipeline 4 and then delivered to the refrigeration host 1.

[0035] The multi-head refrigeration system of the embodiment is still a variable refrigerant multi-connected refrigeration system, and the refrigeration process principle is consistent with the existing system, that is, a high-pressure low-temperature liquid refrigerant is prepared through a refrigeration host 1, and then the refrigerant is delivered to the titanium cannon device 6 corresponding to the end seafood pool 7, the evaporation temperature of the refrigerant in the titanium cannon device 6 is controlled through the electronic expansion valve in front of the titanium cannon device 6, and the seawater in the seafood pool 7 is cooled; the low-pressure high-temperature gaseous refrigerant is delivered to the cooling tower 2 after evaporation, and becomes low-pressure low-temperature liquid refrigerant after heat exchange with the cooling medium, and returns to the refrigeration host 1, completing a complete refrigeration cycle.

[0036] Specifically, the refrigeration host 1 is connected in series through multiple compressors to extract refrigerants between multiple stages of compression to achieve different evaporation temperatures.

[0037] Further optimization, the first compressor is connected in one-to-one correspondence with the refrigerant evaporation output pipeline 3.

[0038] Further optimization, the refrigeration host 1 is also provided with a plurality of second compressors; the second compressors are connected in series with the corresponding first compressors to reduce the refrigerant temperature at the outlet 11 of the refrigerant pipeline of the first compressor.

[0039] Further optimization, the number of refrigerant evaporation output pipelines 3 is three.

[0040] Further optimization, the number of first compressors is three.

[0041] The multi-head refrigeration system of the embodiment can prepare low / medium / high temperature refrigerants respectively, and deliver them to low / medium / high temperature titanium cannon devices 6 through different low / medium / high temperature refrigerant evaporation output pipelines 3, share a refrigerant condensing recovery pipeline 4, thereby improving the operation energy efficiency of the entire refrigeration system and saving system cost; energy supply and demand grade matching is also achieved, reducing energy grade waste (for the refrigeration system, if the refrigerant evaporation temperature is increased from-5℃ to 5℃, 20%-30% of the host energy consumption can be saved, the operation cost and carbon emissions are greatly reduced, and the economic and social benefits are significant).

[0042] Embodiment 2

[0043] As shown in Figure 1

[0044] ​The embodiment provides a kind of water product market building of the multi-head refrigeration system for seafood pool as any one of the technical solutions in embodiment 1 is applied, the water product market building includes building framework;Multiple seafood pools 7 are provided in building framework;The titanium cannon device 6 is one-to-one corresponding with seafood pool 7.

[0045] Further optimization, the water product market building is provided with multiple sea water supply pipes 13;Seafood pool 7 obtains seawater by corresponding sea water supply pipe 13.

[0046] Further optimization, building framework is also provided with several sea water pumps;Each sea water supply pipe 13 is interconnected, and each sea water supply pipe 13 is supplied with seawater by corresponding sea water pump.

[0047] Further optimization, the controller is electrically connected with each sea water pump respectively.

[0048] Further optimization, building framework is provided with multiple shops 12 with seafood pool 7;The water temperature of one of seafood pool 7 is ≤10 ℃, and the water temperature of another seafood pool 7 is ≥20 ℃.

[0049] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application patent.The skilled in the art should note that, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A multi-head refrigeration system for seafood tanks, comprising a controller, a refrigeration unit (1), and a cooling tower (2), wherein the refrigeration unit (1) is provided with multiple first compressors and condensers connected in parallel, the cooling tower (2) is used to cool the condensers, and the refrigeration unit (1) is also provided with multiple refrigerant pipe outlets (11) with different output temperatures, characterized in that, The multi-head refrigeration system also includes: Multiple refrigerant evaporation output pipes (3) are provided, with the beginning of each refrigerant evaporation output pipe (3) connected to the outlet (11) of each refrigerant pipe respectively; each end of each refrigerant evaporation output pipe (3) is connected to a titanium gun device (6) for refrigeration; the multiple refrigerant evaporation output pipes (3) are used to output refrigerant for refrigeration at different temperatures. Multiple pool pumps (5), a titanium cannon device (6) supplies water to at least one pool pump (5) for cooling, so that the cold water flows to the seafood pool (7) corresponding to the titanium cannon device (6) one by one; A refrigerant condensation recovery pipeline (4) is used to collect the refrigerant condensed by each titanium gun device (6) and then send it to the refrigeration unit (1).

2. The multi-head refrigeration system for seafood tanks according to claim 1, characterized in that, The first compressor is connected to the refrigerant evaporation output pipe (3) in a one-to-one correspondence.

3. The multi-head refrigeration system for seafood tanks according to claim 1, characterized in that, The refrigeration unit (1) is also equipped with several second compressors; the second compressors are connected in series with the corresponding first compressors to reduce the refrigerant temperature at the refrigerant outlet (11) of the first compressor.

4. The multi-head refrigeration system for seafood tanks according to any one of claims 1-3, characterized in that, The number of refrigerant evaporation output pipes (3) is three.

5. The multi-head refrigeration system for seafood tanks according to claim 4, characterized in that, The number of the first compressor is three.

6. A seafood market building employing the multi-head refrigeration system for seafood tanks as described in any one of claims 1-5, characterized in that, The seafood market building includes a building frame; multiple seafood tanks (7) are set up inside the building frame; the titanium cannon device (6) corresponds one-to-one with the seafood tanks (7).

7. The aquatic product market building according to claim 6, characterized in that, The seafood market building is equipped with multiple seawater supply pipes (13); the seafood tanks (7) obtain seawater through the corresponding seawater supply pipes (13).

8. The aquatic product market building according to claim 7, characterized in that, The building frame also contains several seawater pumps; each seawater supply pipe (13) is interconnected, and each seawater supply pipe (13) is supplied with seawater by the corresponding seawater pump.

9. The aquatic product market building according to claim 8, characterized in that, The controller is electrically connected to each of the seawater pumps.

10. The aquatic product market building according to any one of claims 6-9, characterized in that, The building frame contains multiple shops (12) with seafood tanks (7); the water temperature of one seafood tank (7) is ≤10℃, and the water temperature of the other seafood tank (7) is ≥20℃.

Images